I've got a central site with several remote sites connected over ATM. A typical setup looks like this (starting from the remote side):
core 3500 switch -> 3640 router -> 8510 ATM switch -> ATM cloud ->8510 ATM switch -> central core 4507
All the remote sides are connected to one of two 8510 switches.
I'd like to be able to pass vlan information and have a couple of ports at the central site be assigned to a particular vlan from each of the remote sites (even just temporarily). How can I do this? IP connectivity is already in place and working fine. I've looked into LANE, IP/ATM, MPOA (does that work on 8500s?). Do I need to do anything with these, or should IP connectivity be enough?